Ilot Sancho water temperatures peak in the range 26 to 29°C (79 to 84°F) on around the 1st of February and are at their minimum on about the 26th of August, in the range 22 to 24°C (72 to 75°F). Year round warm water temperatures at Ilot Sancho climb to their highest at the beginning of February. Even then a rash vest and board shorts should be fine for surfing at any time of year. Ilot Sancho water temperatures are always warm but dip to their minimum in the fourth week of August. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy.